Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Allen-Bradley 1785-L20E/E |
| Product Type | PLC-5/20E Processor Module |
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Series | PLC-5 (1771 I/O platform) |
| Revision | Series E |
| Function | Programmable Logic Controller CPU with integrated Ethernet communication |
| User Memory | 16K words (battery-backed SRAM) |
| I/O Capacity | Up to 512 I/O (any mix) or 512 in + 512 out |
| Communication Ports | Ethernet, DH+, DH+/Remote I/O, Serial (RS-232/422/423) |
| Ethernet Port | 1 × RJ45 (integrated) |
| Programming Software | RSLogix 5 |
| Backplane | 1771 I/O chassis compatible |
| Backplane Current | ~2.3 A @ 5 V DC (typical PLC-5 CPU range) |
| Battery Backup | Yes (lithium battery, e.g., 1770-XYC) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5–95% non-condensing |
| Vibration | 2 g (10–500 Hz) |
| Shock | 30 g operating / 50 g non-operating |
| Dimensions (H × W × D) | ~178 mm × 51 mm × 279 mm |
| Weight | ~0.7–1.4 kg |
| Mounting Type | 1771 chassis slot module |
FAQ
FAQ
Q1. What is the 1785-L20E/E used for?
It is a PLC-5/20E processor used for industrial automation control with built-in Ethernet communication.
Q2. What is the difference between L20B and L20E?
The L20E/E includes integrated Ethernet, while L20B does not have native Ethernet capability.
Q3. What memory capacity does it have?
It provides 16K words of battery-backed SRAM.
Q4. What communication networks does it support?
It supports Ethernet, DH+, Remote I/O, and serial communication.
Q5. How many I/O points can it handle?
Up to 512 I/O points depending on configuration.
Q6. What chassis is it installed in?
It is installed in a 1771 I/O chassis used in PLC-5 systems.
Q7. Does it require a battery?
Yes, a lithium battery is required for memory retention when power is off.
Q8. Is it still in production?
No, it is a legacy/discontinued PLC-5 Ethernet processor.
Tags
Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
